CN111443077A - Aluminum alloy melting process composition analysis device - Google Patents
Aluminum alloy melting process composition analysis device Download PDFInfo
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- CN111443077A CN111443077A CN202010292503.6A CN202010292503A CN111443077A CN 111443077 A CN111443077 A CN 111443077A CN 202010292503 A CN202010292503 A CN 202010292503A CN 111443077 A CN111443077 A CN 111443077A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
- G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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Abstract
The invention provides a component analysis device in an aluminum alloy smelting process, which comprises a host machine, wherein a display and a heat dissipation fan are respectively arranged at two ends of the host machine, a sealing cover is arranged on the host machine, a movable cover plate is arranged at a gap in the middle of the sealing cover, an argon tank, a hopper, a powder delivery pump and a plasma torch tube are arranged in the host machine, the plasma torch tube comprises an outer tube, a middle tube and an inner tube which are sequentially sleeved, sealing covers are fixed at the bottoms of the outer tube and the middle tube, the inner tube penetrates through the sealing covers and is arranged in the middle tube, the argon tank is respectively communicated with the outer tube, the middle tube and the inner tube, the powder delivery pump is communicated with the inner tube, a light collecting part is integrally formed at the top of the outer tube, an induction coil is sleeved outside the outer tube and is connected with a high-frequency generator, a spectrometer and a focusing lens are also arranged, is suitable for large-scale detection and is convenient and reliable to use.
Description
Technical Field
The invention relates to a component analysis device in an aluminum alloy smelting process.
Background
The alloy which takes aluminum as a base and is added with a certain amount of other alloying elements is one of light metal materials, whether the components of the alloy meet the requirements or not needs to be detected in the process of smelting the aluminum alloy, and at present, most of analysis instruments for the components in the process of smelting the aluminum alloy adopt metal material element analysis and are used for detecting the content of elements such as Mn, Cr, Ni, Mo, Cu, Ti, V, Al, W, Nb, Mg, the total amount of rare earth, Co and the like in the aluminum alloy.
However, the existing aluminum alloy component detection needs to dissolve the aluminum alloy, then the element composition in the aluminum alloy can be analyzed, different dissolving solutions need to be prepared for different aluminum alloy materials, the detection process is extremely inconvenient, the large-batch detection efficiency is not high, and the detection accuracy is affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the component analysis device for the aluminum alloy smelting process, which can accurately analyze the element components of the aluminum alloy, is suitable for large-scale detection and use and is convenient and reliable to use.
The invention is realized in such a way, the device for analyzing the components in the aluminum alloy smelting process comprises a host machine, a display and a heat dissipation fan are respectively arranged at two ends of the host machine, a sealing cover is arranged on the host machine, a movable cover plate is arranged at a gap in the middle of the sealing cover, an argon tank, a hopper, a powder delivery pump and a plasma torch tube are arranged in the host machine, the plasma torch tube comprises an outer tube, a middle tube and an inner tube which are sequentially sleeved, sealing covers are fixed at the bottoms of the outer tube and the middle tube, the inner tube penetrates through the sealing covers and is arranged in the middle tube, the argon tank is respectively communicated with the outer tube, the middle tube and the inner tube, the powder delivery pump is communicated with the inner tube, a light collecting part is integrally formed at the top of the outer tube, an induction coil is sleeved outside the outer tube and is connected, the plasma torch tube, the focusing lens and the spectrometer are located at the same horizontal position, the spectrometer is connected with a microprocessor, and the microprocessor is connected with a display.
The outer tube, the middle tube and the inner tube are all quartz glass tubes.
And a handle is arranged at the top of the movable cover plate.
The light collecting part is in a circular truncated cone shape, and the diameter of the top of the light collecting part is smaller than that of the bottom of the light collecting part.
The invention solves another problem by providing a using method of the component analysis device in the aluminum alloy smelting process, which comprises the following steps:
s1, transferring the aluminum alloy liquid in the smelting furnace into a transfer bag to obtain an extracted liquid sample, impacting the liquid sample by adopting an ultrasonic atomization method and high-speed airflow at the frequency of 70KHz and the speed of Mach 1.5 to atomize the liquid sample into small liquid drops, and then solidifying the small liquid drops into powder;
s2, putting the powder into a ball mill for grinding, and filtering through a screen to obtain a powder sample with the diameter smaller than 1000 meshes;
s3, putting the powder sample into a hopper, conveying the powder sample into an inner tube of the plasma torch tube through a powder conveying pump, and conveying argon into an outer tube, a middle tube and the inner tube of the plasma torch tube through an argon tank;
and S4, starting a high-frequency generator to generate a high-frequency electromagnetic field through an induction coil, enabling the powder sample of the inner tube to form a plasma generation light source, transmitting the plasma generation light source to a spectrometer through a focusing lens, and analyzing the plasma generation light source through a microprocessor to obtain the element components of the aluminum alloy on a display.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the main machine is internally provided with an argon gas tank, a hopper, a powder delivery pump and a plasma torch tube, the outer side of the outer tube of the plasma torch tube is sleeved with an induction coil, the induction coil is connected with a high-frequency generator, and the main machine is internally provided with a spectrometer and a focusing lens, so that automatic detection can be realized, the element components of the aluminum alloy can be accurately analyzed, and the detection efficiency is improved; in the detection method, the aluminum alloy liquid is directly prepared into powder for detection, and solution does not need to be prepared for different aluminum alloy materials, so that the detection is more convenient and reliable, and the method is suitable for large-batch detection.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an external structural view of a component analysis apparatus for an aluminum alloy melting process according to the present invention.
FIG. 2 is a schematic internal diagram of an apparatus for analyzing components in an aluminum alloy melting process according to the present invention.
FIG. 3 is an enlarged structural view of a plasma torch tube of the component analysis device in the aluminum alloy smelting process provided by the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, this embodiment provides an aluminum alloy melting process composition analysis device, including host computer 1, display 2 and cooling fan 3 are installed respectively to host computer 1 both ends, and display 2 is used for showing the aluminum alloy composition result, and cooling fan 3 can keep the inside ventilation cooling of host computer 1, avoids the high temperature. Install sealed cowling 4 on the host computer 1, the casing of host computer 1 and sealed cowling 4 all adopt stainless steel. A movable cover plate 5 is arranged at a gap in the middle of the sealing cover 4, the movable cover plate 5 slides in the sealing cover 4, the movable cover plate 5 is opened when detection is needed, and the movable cover plate 5 is closed in the detection process.
Be provided with argon gas jar 6, hopper 7, powder delivery pump 8 and plasma torch pipe 9 in the host computer 1, the argon gas in the argon gas jar 6 is as protective gas, avoids the ionization in-process reaction too violent, has the radiating effect to plasma torch pipe 9 simultaneously. The plasma torch tube 9 comprises an outer tube 10, a middle tube 11 and an inner tube 12 which are sequentially sleeved, a sealing cover 13 is fixed at the bottom of the outer tube 10 and the bottom of the middle tube 11, and the sealing cover 13 is also made of quartz glass and is integrally formed with the outer tube 10, the middle tube 11 and the inner tube 12. The inner pipe 12 penetrates through the sealing cover 13 and is arranged in the middle pipe 11, the argon tank 6 is respectively communicated with the outer pipe 10, the middle pipe 11 and the inner pipe 12, the powder conveying pump 8 is communicated with the inner pipe 12, and the powder conveying pump 8 is used for conveying aluminum alloy powder. The top of the outer tube 10 is integrally formed with a light collecting part 14, and the light collecting part 14 enables torches discharged from the plasma torch tube 9 to be collected, so that the reflected light source has higher brightness and is easier to detect by a spectrometer. The outer side of the outer tube 10 is sleeved with an induction coil 15, the induction coil 15 is connected with a high-frequency generator 16, the high-frequency generator 16 is used for providing high-frequency current for the induction coil 15, after plasma in the plasma torch tube 9 is ignited, the induction coil 15 and the plasma form a transformer similar to the same, the induction coil 15 is a primary coil of the transformer, and the plasma is equivalent to a secondary coil: high frequency power is coupled into the plasma through the induction coil 15 to maintain the plasma torch extinguished.
The main machine 1 is also provided with a spectrometer 17 and a focusing lens 18, and the spectrometer 17 uses a photo-detector such as a photomultiplier tube to measure the intensities of different wavelength positions of spectral lines. It consists of an entrance slit, a dispersion system, an imaging system and one or more exit slits. A dispersive element separates the electromagnetic radiation from the source into the desired wavelength or wavelength region and measures the intensity at the selected wavelength (or scans a band of wavelengths), and a focusing lens 18 is used to collect the light generated at the top of the torch 9. The plasma torch tube 9 (top position), the focusing lens 18 and the spectrometer 17 are in the same horizontal position, the spectrometer 17 is connected with the microprocessor 19, and the microprocessor 19 is used for analyzing light wavelength information collected by the spectrometer 17. The microprocessor 19 is connected to the display 2 to visualize the results.
The outer tube 10, the middle tube 11 and the inner tube 12 are all quartz glass tubes which are high temperature resistant and stable in performance.
The handle 20 is installed at the top of the removable cover 5, and the handle 20 makes the removable cover 5 move more conveniently.
The light collecting part 14 is in a circular truncated cone shape, and the diameter of the top of the light collecting part 14 is smaller than that of the bottom of the light collecting part 14, so that the density of plasma is higher when the plasma is discharged from the light collecting part 14, and the brightness of a light source is improved.
A use method of an aluminum alloy smelting process component analysis device comprises the following steps:
s1, transferring the aluminum alloy liquid in the smelting furnace into a transfer bag to obtain an extracted liquid sample, impacting the liquid sample at the frequency of 70KHz and the speed of Mach 1.5 by using an ultrasonic atomization method and high-speed airflow to atomize the liquid sample into small liquid drops, and then solidifying the small liquid drops into powder, wherein the ultrasonic atomization method can be adopted for preparing aluminum alloy powder aiming at aluminum alloy smelting of different materials;
s2, putting the powder into a ball mill for grinding, filtering by a screen to obtain a powder sample with the diameter smaller than 1000 meshes, and reducing the diameter of the powder as much as possible so as to ensure that coupling ionization is more sufficient;
s3, putting a powder sample into a hopper, conveying the powder sample into an inner tube of a plasma torch tube through a powder conveying pump, conveying argon gas into an outer tube, a middle tube and the inner tube of the plasma torch tube through an argon gas tank (specifically, communicated through a pipeline), and communicating the argon gas tank and a powder conveyer through interfaces arranged in the inner tube;
s4, starting a high-frequency generator to generate a high-frequency electromagnetic field through an induction coil, enabling a powder sample of an inner tube to form a plasma generating light source, transmitting the plasma generating light source to a spectrometer through a focusing lens, and analyzing the element components of the aluminum alloy through a microprocessor, wherein the high-frequency current generates the high-frequency electromagnetic field through the induction coil, so that working gas (argon and powder mixed gas) forms plasma, flame-shaped discharge (plasma torch) is presented, the high temperature reaches 10000K, the specific process is evaporation-atomization-excitation-ionization performance spectral light source, the plasma torch is of a ring structure, is beneficial to sample injection from a plasma central channel and maintains the stability of flame, a low carrier gas flow (lower than 1L/min) can penetrate the plasma, the sample stays in the central channel for 2-3 ms, complete evaporation and atomization can be realized, the high temperature of the central channel of the plasma ring structure is higher than the temperature of any flame or electric arc, the optimal excitation temperature of atoms and ions is ensured, the analyte (the aluminum alloy powder) is indirectly heated in the central channel, the plasma discharge has small influence on the plasma property, and the plasma self-priming light source can be accurately detected.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that: the main machine is internally provided with an argon gas tank, a hopper, a powder delivery pump and a plasma torch tube, the outer side of the outer tube of the plasma torch tube is sleeved with an induction coil, the induction coil is connected with a high-frequency generator, and the main machine is internally provided with a spectrometer and a focusing lens, so that automatic detection can be realized, the element components of the aluminum alloy can be accurately analyzed, and the detection efficiency is improved; in the detection method, the aluminum alloy liquid is directly prepared into powder for detection, and solution does not need to be prepared for different aluminum alloy materials, so that the detection is more convenient and reliable, and the method is suitable for large-batch detection.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (5)
1. The utility model provides an aluminum alloy melting process composition analytical equipment, includes host computer (1), its characterized in that, display (2) and cooling fan (3) are installed respectively to host computer (1) both ends, install seal cover (4) on host computer (1), seal cover (4) middle part breach department is provided with removable cover (5), be provided with argon gas jar (6), hopper (7), powder delivery pump (8) and plasma torch pipe (9) in host computer (1), plasma torch pipe (9) are including outer tube (10), well pipe (11) and inner tube (12) that establish in proper order, outer tube (10) and well pipe (11) bottom are fixed with sealed lid (13), inner tube (12) pass sealed lid (13) and establish in well pipe (11), argon gas jar (6) communicate with outer tube (10), well pipe (11) and inner tube (12) respectively, powder delivery pump (8) and inner tube (12) intercommunication, outer tube (10) top integrated into one piece has light collecting part (14), outer tube (10) outside cover is equipped with induction coil (15), induction coil (15) are connected with high frequency generator (16), still install spectrum appearance (17) and focusing lens (18) in host computer (1), plasma torch pipe (9), focusing lens (18) and spectrum appearance (17) are in same horizontal position, spectrum appearance (17) are connected with microprocessor (19), microprocessor (19) are connected with display (2).
2. The aluminum alloy melting process composition analysis device as recited in claim 1, wherein the outer tube (10), the middle tube (11) and the inner tube (12) are all quartz glass tubes.
3. The aluminum alloy melting process composition analysis device as recited in claim 1, wherein a handle (20) is mounted on the top of the removable cover plate (5).
4. The aluminum alloy melting process composition analysis device as recited in claim 1, wherein the light collecting portion (14) is in the shape of a circular truncated cone, and the diameter of the top of the light collecting portion (14) is smaller than the diameter of the bottom of the light collecting portion (14).
5. The application method of the component analysis device in the aluminum alloy smelting process is characterized by comprising the following steps of:
s1, transferring the aluminum alloy liquid in the smelting furnace into a transfer bag to obtain an extracted liquid sample, impacting the liquid sample by adopting an ultrasonic atomization method and high-speed airflow at the frequency of 70KHz and the speed of Mach 1.5 to atomize the liquid sample into small liquid drops, and then solidifying the small liquid drops into powder;
s2, putting the powder into a ball mill for grinding, and filtering through a screen to obtain a powder sample with the diameter smaller than 1000 meshes;
s3, putting the powder sample into a hopper, conveying the powder sample into an inner tube of the plasma torch tube through a powder conveying pump, and conveying argon into an outer tube, a middle tube and the inner tube of the plasma torch tube through an argon tank;
and S4, starting a high-frequency generator to generate a high-frequency electromagnetic field through an induction coil, enabling the powder sample of the inner tube to form a plasma generation light source, transmitting the plasma generation light source to a spectrometer through a focusing lens, and analyzing the plasma generation light source through a microprocessor to obtain the element components of the aluminum alloy on a display.
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| CN202010292503.6A CN111443077A (en) | 2020-04-14 | 2020-04-14 | Aluminum alloy melting process composition analysis device |
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| CN202010292503.6A CN111443077A (en) | 2020-04-14 | 2020-04-14 | Aluminum alloy melting process composition analysis device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113866205A (en) * | 2021-12-06 | 2021-12-31 | 天津海关动植物与食品检测中心 | Chinese herbal medicine fluorescence spectrum heavy metal detection device and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113866205A (en) * | 2021-12-06 | 2021-12-31 | 天津海关动植物与食品检测中心 | Chinese herbal medicine fluorescence spectrum heavy metal detection device and detection method |
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Application publication date: 20200724 |